At global youth summit, they are also encouraged to disconnect from devices and build real relationships
The students were attending the 11th Global Youth Leaders' Summit at Yio Chu Kang Secondary School.
The summit also included talks about smartphone addiction.
The annual summit was launched in 2009 to develop students' leadership skills and promote cultural and youth diplomacy.
The Character and Leadership Academy (CLA), a youth development charity which organised the summit, also launched a new movement called Be Kind To Every Kind, which calls upon young people to be compassionate to people, wildlife and the environment.
The 2016 National Youth Survey found that nine in 10 young people consider helping the less fortunate and contributing to society as important life goals.
But the summit's organising chairman Delane Lim, who is CLA's executive director, hopes every young person in the country will pay it forward with simple acts of kindness.
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